Global Patent Index - EP 3636682 A1

EP 3636682 A1 20200415 - FLUORINE-CONTAINING ELASTIC COPOLYMER AND PRODUCTION METHOD THEREFOR

Title (en)

FLUORINE-CONTAINING ELASTIC COPOLYMER AND PRODUCTION METHOD THEREFOR

Title (de)

FLUORHALTIGES ELASTISCHES COPOLYMER UND HERSTELLUNGSVERFAHREN DAFÜR

Title (fr)

COPOLYMÈRE ÉLASTIQUE CONTENANT DU FLUOR ET SON PROCÉDÉ DE PRODUCTION

Publication

EP 3636682 A1 20200415 (EN)

Application

EP 18813542 A 20180529

Priority

  • JP 2017110809 A 20170605
  • JP 2018020587 W 20180529

Abstract (en)

To provide a fluorinated elastic copolymer in which the contents of metal elements and chloride ions are low, and a method for producing a fluorinated elastic copolymer, whereby it is possible to obtain a fluorinated elastic copolymer in which the contents of metal elements and chloride ions are low. A fluorinated elastic copolymer in which the content of metal elements is at most 20.0 ppm by mass and the content of chloride ions is at most 1 ppm by mass; and a method for producing a fluorinated elastic copolymer, which comprises coagulating a fluorinated elastic copolymer in a latex containing the fluorinated elastic copolymer by using an acid containing no metal elements or no chloride ions, and washing the coagulated fluorinated elastic copolymer with a liquid medium having a content of metal elements of at most 2.0 ppm by mass and a content of chloride ions of at most 2 ppm by mass.

IPC 8 full level

C08F 214/26 (2006.01); C08F 6/14 (2006.01); C08F 214/18 (2006.01)

CPC (source: EP US)

C08F 6/02 (2013.01 - EP); C08F 6/22 (2013.01 - EP); C08F 14/26 (2013.01 - US); C08F 214/262 (2013.01 - EP)

C-Set (source: EP)

  1. C08F 6/22 + C08L 27/18
  2. C08F 6/22 + C08L 27/12
  3. C08F 6/02 + C08L 27/12
  4. C08F 6/02 + C08L 27/18

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3636682 A1 20200415; EP 3636682 A4 20210303; CN 110709433 A 20200117; JP 7283383 B2 20230530; JP WO2018225586 A1 20200416; TW 201902954 A 20190116; TW 202120568 A 20210601; TW I813924 B 20230901; TW I829639 B 20240121; US 2020102409 A1 20200402; WO 2018225586 A1 20181213

DOCDB simple family (application)

EP 18813542 A 20180529; CN 201880037203 A 20180529; JP 2018020587 W 20180529; JP 2019523474 A 20180529; TW 107118724 A 20180531; TW 109144221 A 20180531; US 201916699935 A 20191202